Alert archive / Alabama / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 49, NWS Birmingham, AL

April 9, 1991Pickens County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 9, 1991, 8:03 PM CDT for Pickens County, Alabama. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1991, 8:03 PM CDT (01:03 UTC)
Expired
Apr 9, 1991, 8:45 PM CDT
In force
42 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Pickens County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 1.1 hours before the alert went out and 93 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Centreville/Bibb, AL at 00:00Z on 1991-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 33 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Centreville/Bibb, AL at 00:00Z on 1991-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
33 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
1455 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Apr 9, 4:49 PM CDT, 3 hours 14 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
447 PM CDT TUE APR 9 1991

305 PM CDT...HALE COUNTY, AL...CITY OF MOUNDVILLE...MARBLE SIZED HAIL
             FELL.
410 PM CDT...MARION COUNTY, AL...MARBVLE SIZED HAIL FELL IN GUIN.

425 PM CDT...ETOWAH COUNTY, AL...GOLFBALL SIZED HAIL FELL EAST OF THE CITY
              OF GADSDEN.

440 PM CDT...CHILTON COUNTY, AL...DIME SIZED HAIL FELL NORTH OF THE
             COMMUNITY OF JEMISON.
Special weather statement, Apr 9, 4:59 PM CDT, 3 hours 4 minutes before
ALZ010-011-012-014-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY AL
455 PM CDT TUE APR 9 1991

AT 445 PM RADAR SHOWED NUMEROUS THUNDERSTORMS OVER WEST AND CENTRAL
ALABAMA. ONE OF THE STRONGEST STORMS WAS JUST WEST OF THE MONTGOMERY
AIRPORT MOVING EAST AT AROUND 30 MPH. THIS STORM WILL BE MOVING OVER
THE CITY OF MONTGOMERY BETWEEN 5 AND 530 PM. OTHER STRONG
THUNDERSTORMS WERE IN A BAND FROM TALLEDEGA TO DEMOPOLIS...ALSO MOVjING
EAST. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR DALLAS AND
WILCOX COUNTIES UNTIL 8PM. PLEASE REMAIN ALERT AND READY TO MOVE TO A
SAFE PLASE IF ONE OF THE STRONGER THUNDERSTORMS APPROACHES.

DEVAUGHN
Local storm report, Apr 9, 6:12 PM CDT, 1 hour 51 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
610 PM CDT TUE APR 9 1991

515 PM...PICKENS COUNTY, AL.  MARBLE SIZED HAIL COVERED THE GROUND NEAR
         CARROLTON...REFORM AND COAL FIRE.

535 PM...iWALKER COUNTY, AL.  GOLF BALL SIZED HAIL COVERED THE GROUND IN
         CURRY (8 MILES SOUTH OF JASPER).

545 PM...TUSCALOOSA COUNTY, AL.  MARBLE SIZED HAIL FELL AT BROWNVILLE
          (15 MILES NORTHWEST OF TUSCALOOSA).
Local storm report, Apr 9, 6:43 PM CDT, 1 hour 20 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MONTGOMERY AL
640 PM CDT TUE APR 09 1991

MONTGOMERY COUNTY...6 35PM CDT...GOLF BALL SIZE HAIL CHAMBERS...WOODLEY
ROAD IN SNOWDON. REPORT FROM MONTGOMERY DPS.
6 13PM CDT...MARBLE SIZE HAIL AT U.S 80 AND ALABAMA 21 WEST OF DANNELLY
FIELD. REPORT FROM SKYWARN.
6PM CDT...MARBLE SIZE HAIL AND HIGH WINDS ON PIKE ROAD IN SOUTH
MONTGOMERY. REPORT FROM SKYWARN.
LOWNDES COUNTY...6 27PM CDT...MARBLE SIZE HAIL AT LOWNDESBORO. REPORT
FROM SKYWARN.
PETTIT
Special weather statement, Apr 9, 7:49 PM CDT, 14 minutes before
ALZ007-009-013-014-100300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
745 PM CDT TUE APR 9 1991

...THE SEVERE THUNDERSTORM WATCH HAS BEEN EXTENDED UNTIL 1000 PM CDT
   FOR PARTS OF NORTH AND CENTRAL ALABAMA...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS EXTENDED THE SEVERE
THUNDERSTORM WATCH WHICH EXPIRES AT 800 PM CDT UNTIL 100 PM CDT FOR
THE FOLLOWING COUNTIES IN NORTH AND CENTRAL ALABAMA...

CALHOUN...CHILTON...CHOCTAW...CLARKE...CLEBURNE...DALLAS...MARENGO...
PERRY...TALLADEGA...WASHINGTON...WILCOX
Special weather statement, Apr 9, 7:54 PM CDT, 9 minutes before
ALZ007-009-013-014-100300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
745 PM CDT TUE APR 9 1991

...THE SEVERE THUNDERSTORM WATCH HAS BEEN EXTENDED UNTIL 1000 PM CDT
   FOR PARTS OF NORTH AND CENTRAL ALABAMA...

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS EXTENDED THE SEVERE
THUNDERSTORM WATCH WHICH EXPIRES AT 800 PM CDT UNTIL 1000 PM CDT FOR
THE FOLLOWING COUNTIES IN NORTH AND CENTRAL ALABAMA...

CALHOUN...CHILTON...CHOCTAW...CLARKE...CLEBURNE...DALLAS...MARENGO...
PERRY...TALLADEGA...WASHINGTON...WILCOX

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 7:11 PM CDTSevere Thunderstorm WarningBMXMadison, Marshall49 min
Apr 9, 7:21 PM CDTSevere Thunderstorm WarningBMXSt. Clair54 min
Apr 9, 7:36 PM CDTSevere Thunderstorm WarningBMXTalladega39 min
Apr 9, 7:45 PM CDTSevere Thunderstorm WarningBMXJackson, Madison60 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.